2H,6H-(1,3)Thiazolo(3,2-b)isoquinolin-6-one, 3,4-dihydro-, 1-oxide 3,4-Dihydro-2H,6H-(1,3)thiazolo(3,2-b)isoquinolin-6-one 1-oxide 6-Oxo-3,4-dihydro-2H,6H-1,3-thiazino(3,2-b)isoquinoline-1-oxide 67755-09-3